If you do receive unwanted mail in your inbox you can report it to your internet service provider as spam very easily. In your inbox, select the message and click on the button that says Spam or Report Spam. This will alert your provider not to deliver mail from this address in the future because it is from a spammer. In the same way you can report messages in the Junk folder as not being spam by selecting the message and clicking the Not Spam button. According to your specifications, it will either move it to your inbox or leave it alone. If your e-mail provider does not have these easy buttons, it might helpful to e-mail them to find out their policy on reporting spam.